1 /* $Id: recctrl.c,v 1.20 2005-04-28 08:20:40 adam Exp $
2 Copyright (C) 1995-2005
5 This file is part of the Zebra server.
7 Zebra is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 2, or (at your option) any later
12 Zebra is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
17 You should have received a copy of the GNU General Public License
18 along with Zebra; see the file LICENSE.zebra. If not, write to the
19 Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
32 #include <idzebra/util.h>
33 #include <idzebra/recctrl.h>
37 struct recTypeClass *next;
41 struct recTypeInstance {
43 struct recTypeInstance *next;
50 struct recTypeInstance *entries;
53 static void recTypeClass_add (struct recTypeClass **rts, RecType *rt,
54 NMEM nmem, void *module_handle);
56 RecTypeClass recTypeClass_create (Res res, NMEM nmem)
58 struct recTypeClass *rts = 0;
59 const char *module_path = res_get_def(res, "modulePath",
62 #ifdef IDZEBRA_STATIC_GRS_SGML
65 extern RecType idzebra_filter_grs_sgml[];
66 recTypeClass_add (&rts, idzebra_filter_grs_sgml, nmem, 0);
69 #ifdef IDZEBRA_STATIC_TEXT
72 extern RecType idzebra_filter_text[];
73 recTypeClass_add (&rts, idzebra_filter_text, nmem, 0);
76 #ifdef IDZEBRA_STATIC_GRS_XML
80 extern RecType idzebra_filter_grs_xml[];
81 recTypeClass_add (&rts, idzebra_filter_grs_xml, nmem, 0);
85 #ifdef IDZEBRA_STATIC_GRS_REGX
88 extern RecType idzebra_filter_grs_regx[];
89 recTypeClass_add (&rts, idzebra_filter_grs_regx, nmem, 0);
92 #ifdef IDZEBRA_STATIC_GRS_MARC
95 extern RecType idzebra_filter_grs_marc[];
96 recTypeClass_add (&rts, idzebra_filter_grs_marc, nmem, 0);
99 #ifdef IDZEBRA_STATIC_GRS_DANBIB
102 extern RecType idzebra_filter_grs_danbib[];
103 recTypeClass_add (&rts, idzebra_filter_grs_danbib, nmem, 0);
106 #ifdef IDZEBRA_STATIC_SAFARI
109 extern RecType idzebra_filter_safari[];
110 recTypeClass_add (&rts, idzebra_filter_safari, nmem, 0);
113 #ifdef IDZEBRA_STATIC_ALVIS
117 extern RecType idzebra_filter_alvis[];
118 recTypeClass_add (&rts, idzebra_filter_alvis, nmem, 0);
122 #ifdef IDZEBRA_STATIC_XSLT
126 extern RecType idzebra_filter_xslt[];
127 recTypeClass_add (&rts, idzebra_filter_xslt, nmem, 0);
135 DIR *dir = opendir(module_path);
136 yaz_log(YLOG_LOG, "searching filters in %s", module_path);
141 while ((de = readdir(dir)))
143 size_t dlen = strlen(de->d_name);
145 !memcmp(de->d_name, "mod-", 4) &&
146 !strcmp(de->d_name + dlen - 3, ".so"))
149 char fname[FILENAME_MAX*2+1];
150 sprintf(fname, "%.*s/%.*s",
151 FILENAME_MAX, module_path,
152 FILENAME_MAX, de->d_name);
153 mod_p = dlopen(fname, RTLD_NOW|RTLD_GLOBAL);
154 if (mod_p && (fl = dlsym(mod_p, "idzebra_filter")))
156 yaz_log(YLOG_LOG, "Loaded filter module %s", fname);
157 recTypeClass_add(&rts, fl, nmem, mod_p);
161 const char *err = dlerror();
162 yaz_log(YLOG_WARN, "dlsym failed %s %s",
163 fname, err ? err : "none");
168 const char *err = dlerror();
169 yaz_log(YLOG_WARN, "dlopen failed %s %s",
170 fname, err ? err : "none");
182 static void recTypeClass_add (struct recTypeClass **rts, RecType *rt,
183 NMEM nmem, void *module_handle)
187 struct recTypeClass *r = (struct recTypeClass *)
188 nmem_malloc (nmem, sizeof(*r));
193 yaz_log(YLOG_LOG, "Adding filter %s", (*rt)->name);
194 r->module_handle = module_handle;
195 module_handle = 0; /* so that we only store module_handle once */
202 void recTypeClass_info(RecTypeClass rtc, void *cd,
203 void (*cb)(void *cd, const char *s))
205 for (; rtc; rtc = rtc->next)
206 (*cb)(cd, rtc->recType->name);
209 void recTypeClass_destroy(RecTypeClass rtc)
211 for (; rtc; rtc = rtc->next)
214 if (rtc->module_handle)
215 dlclose(rtc->module_handle);
220 RecTypes recTypes_init(RecTypeClass rtc, data1_handle dh)
222 RecTypes rts = (RecTypes) nmem_malloc(data1_nmem_get(dh), sizeof(*rts));
224 struct recTypeInstance **rti = &rts->entries;
228 for (; rtc; rtc = rtc->next)
230 *rti = nmem_malloc(data1_nmem_get(dh), sizeof(**rti));
231 (*rti)->recType = rtc->recType;
232 (*rti)->init_flag = 0;
239 void recTypes_destroy (RecTypes rts)
241 struct recTypeInstance *rti;
243 for (rti = rts->entries; rti; rti = rti->next)
246 (*(rti->recType)->destroy)(rti->clientData);
250 RecType recType_byName (RecTypes rts, Res res, const char *name,
253 struct recTypeInstance *rti;
255 for (rti = rts->entries; rti; rti = rti->next)
257 size_t slen = strlen(rti->recType->name);
258 if (!strncmp (rti->recType->name, name, slen)
259 && (name[slen] == '\0' || name[slen] == '.'))
265 (*(rti->recType)->init)(res, rti->recType);
267 *clientDataP = rti->clientData;
271 if (rti->recType->config)
272 (*(rti->recType)->config)(rti->clientData, res, name+slen);